US2016276053A1PendingUtilityA1

Stable poly(3,4-ethylenedioxythiophene) compositions and anionic stabilizers with limited acidity

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Assignee: ARKEMA FRANCEPriority: Oct 31, 2013Filed: Oct 29, 2014Published: Sep 22, 2016
Est. expiryOct 31, 2033(~7.3 yrs left)· nominal 20-yr term from priority
Inventors:Christophe NavarroWiljan SmaalMuhammad MumtazEric CloutetCyril BrochonGeorges Hadziioannou
H01B 1/24C08L 81/02H01B 1/127C08F 12/20C09D 133/14C08G 2261/794C08F 291/14C09K 2211/1483C08F 2/00C08F 12/30C09K 11/06C08G 61/126C08K 5/04C08L 65/00C08F 2/38C08G 2261/3223C08L 27/12C08J 5/18C08F 2438/03C08G 2261/1424C08L 2201/10C08F 8/30C08G 2261/51C08G 65/00H10K 71/12H10K 30/821H10K 85/1135H10K 85/221H10K 50/816H10K 10/82
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Claims

Abstract

The invention relates to a stable composition of poly(3,4-ethylenedioxythiophene) anionic stabilizers with a limited degree of acidity.

Claims

exact text as granted — not AI-modified
1 . A PEDOT:polyanion composition in which the polyanion comprises monomers which correspond to formula I below: 
       I: 
       
         
           
           
               
               
           
         
         A=H, CH 3   
       
       
         
           
           
               
               
           
         
       
       or aryl group
 R=alkyl or aryl group 
 
       
         
           
           
               
               
           
         
       
       R1=CF 3 , CH 3 , F
   = ,  ,  (R′) 3 , 
 
       
         
           
           
               
               
           
         
       
       R′=aryl group 
     
     
         2 . The composition as claimed in  claim 1 , in which the polyanion is prepared by controlled radical polymerization using a nitroxide. 
     
     
         3 . The composition as claimed in  claim 2 , in which the nitroxide is N-tert-butyl-1-diethylphosphono-2,2-dimethylpropyl nitroxide. 
     
     
         4 . The composition as claimed in  claim 1 , in which the polyanion is prepared by controlled radical polymerization using a RAFT agent. 
     
     
         5 . The composition as claimed in  claim 4 , in which the RAFT agent corresponds to formula II below:
 II:   
       
         
           
           
               
               
           
         
         in which R represents an alkyl group comprising 1 to 22 carbon atoms. 
       
     
     
         6 . The composition as claimed in  claim 1 , additionally comprising an additive. 
     
     
         7 . The composition as claimed in  claim 6 , in which the additive is ethylene glycol. 
     
     
         8 . A conductive transparent film obtained from a composition as claimed in  claim 1 . 
     
     
         9 . A method of dispersing nanofillers, comprising using a composition as claimed in  claim 1  as a dispersant. 
     
     
         10 . The method as claimed in  claim 9 , wherein the nanofillers consist of carbon nanotubes. 
     
     
         11 . A conductive transparent film obtained from a composition as claimed in  claim 1  and carbon nanotubes.

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